Dubuque casinos saw a sharp decline in gambling revenue last month, another negative impact of COVID-19. Diamond Jo and Q casinos collectively produced about $9.3 million in gambling revenue last month, a decline of nearly 13% compared to August 2019. While Diamond Jo earned the majority of the market share, the casino also experienced steeper year-over-year declines. The casino reported just over $5 million in gaming revenue last month, a decrease of 16% compared to the same period last year. Q Casino saw revenues decline 7.8%, to about $4.1 million last month.















